Rectangular and square HSS

HSS 356x305x13

Standard: CSA G40.20/G40.21Source: Calculated (exact engine)
Calculated: design thickness = nominal thickness (CSA G40.20, Class C), outside radius 2t. Range derived from ASTM A500 sizes — cross-check with the CISC tables.
xyb = 304.8d = 355.6t = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
355.6mm
Widthb
304.8mm
Thicknesst
12.7mm
Outside corner radiusro
25.4mm

Mass and area

Mass per lengthm
123.4kg/m
Cross-sectional areaA
15,714mm²
Outside perimeterP
1,277mm

Strong axis x–x

Moment of inertiaIx
291.110⁶ mm⁴
Elastic section modulusSx
1,63710³ mm³
Plastic section modulusZx
1,94710³ mm³
Radius of gyrationrx
136.1mm

Weak axis y–y

Moment of inertiaIy
229.610⁶ mm⁴
Elastic section modulusSy
1,50710³ mm³
Plastic section modulusZy
1,75310³ mm³
Radius of gyrationry
120.9mm

Torsion and stability

Torsional constantJ
410,18410³ mm⁴

Equivalents in other standards